This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 36 |
| 2 | 63 |
| 3 | 174 |
| 4 | 198 |
| 5 | 306 |
| 6 | 312 |
| 7 | 399 |
| 8 | 1176 |
| 9 | 930 |
| 10 | 1296 |
| 11 | 1989 |
| 12 | 1110 |
| 13 | 888 |
| 14 | 2190 |
| 15 | 1896 |
| 16 | 2688 |
| 17 | 3990 |
| 18 | 3630 |
| 19 | 3090 |
| 20 | 3696 |
| 21 | 3810 |
| 22 | 8316 |
| 23 | 6870 |
| 24 | 4710 |
| 25 | 12420 |
| 26 | 11340 |
| 27 | 9180 |
| 28 | 13350 |
| 29 | 12990 |
| 30 | 14070 |
| 31 | 14364 |
| 32 | 14970 |
| 33 | 9900 |
| 34 | 15444 |
| 35 | 14790 |
| 36 | 15012 |
| 37 | 18570 |
| 38 | 19980 |
| 39 | 25164 |
| 40 | 23610 |
| 41 | 25092 |
| 42 | 23790 |